Multiple access using two sets of orthogonal signal waveforms

  title={Multiple access using two sets of orthogonal signal waveforms},
  author={Hikmet Sari and Frederik Vanhaverbeke and Marc Moeneclaey},
  journal={IEEE Communications Letters},
We present a new multiple access concept which allows to accommodate more than N users on a channel of NW Hz bandwidth, where W Hz is the bandwidth of the individual user signals. It makes use of two sets of orthogonal signal waveforms, one for the first N users and one for the additional users. An iterative multistage detection technique is used to cancel interference between the two sets of users. At each stage of the detection process, the best estimate of the multiuser interference is… CONTINUE READING
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